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From left to right: the NMDA and AMPA receptors transport calcium cations into neurons after being activated by the neurotransmitter glutamate and the GABA receptor (right) transport chloride anions after the activation by gamma aminobutyrate. PDB entries: 6wht, 3kg2, 6d6u

Cells in the body examined by endoscope

Proteasomes are molecular machines for breaking down proteins called proteolysis, only target proteins that have been marked for destruction called ubiquitin to the target protein, 3d rendering

3d Rendering Molecular Structure,Ozone,Hydrogen and oxygen

3D cartoon and Gaussian surface models, chain id color scheme, PDB 7t3a, white background

Inside protein molecule

3d rendered Gastric inhibitory polypeptide (GIP, glucose-dependent insulinotropic peptide) endocrine protein hormone, 3D illustration

nanotechnology and abstract graphene structures

Bacterial multidrug efflux pumps (E-CmeB) expel antibiotics from inside the bacterium (bottom): ciprofloxacin (yellow), chloramphenicol (violet), ampicillin (red).

Energy exchange of electrons between atoms

DNA close-up, DNA Molecule Model, DNA Strands, DNA animation

Close-up shooting of a green agate stone mineral surface isolated on white background. Its a macro shot shows nature beautiful details with back lit. Agate is a kind of natural gemstone. Abstract pattern. Good for Wallpaper texture background. Turquoise, blue

3D cartoon and Gaussian surface models, PDB 5fwk, white background

Computer generated abstract concept image of 3d spheres like metaphor of abstract business processes.

Acetylcholine receptors in the lipid layer of cell membrane.

Overhead aerial drone view of oyster farm racks at low tide, flying at a low altitude to be able to see the detail of the oyster racks and seaweed. Located in a tidal estuary in Sutherland, Scotland. the low tides enable workers to access the racks for turning the oysters as they grow. Oysters have been farmed for many hundreds of years using this method. Seaweed has grown around the metal lines of racks.

p53 (blue) tagged with ubiquitin (yellow) is degraded into small peptides by a proteasome (violett). p53 prevents cancer formation and acts as a guardian of the genome. Mutations in the p53 gene contribute to about half of the cases of human cancer.

This footage shows the translation initiation complex, which consists of the ribosomal small subunit, transfer RNA (tRNA), and translation initiation factors. The golden ribbon represents the RNA.

Science background with molecule or atom

Liquid bubbles up Fluid Twirl

3D cartoon and Gaussian surface models, PDB 6rwb, white background

A ball-and-stick molecular model of the hormone Orexin, also known as Hypocretin. Orexin is involved in the regulation of the sleep/wake cycle and it stimulates apetite, wakefulness and energy expenditure. It has been linked with Alzheimer's disease. Isolated on white.

Biological protein and molecule, 3d rendering. 3D illustration.

$Clear cell renal cell carcinoma. Site: Kidney. Clear cell renal cell carcinoma is a cancer of the kidney. The name \$

The glucagon like peptide-1 receptor (GLPr) is a G proteincoupled receptor (GPCR) that mediates the action of GLP-1, a peptide hormone. The activated receptor has a strong effect on the management of type 2 diabetes mellitus and obesity, including glucose homeostasis and regulation of gastric motility and food intake.

Molecular structure of Sulfur dioxide SO2

Ball and stick 3D render of the caffeine molecular structure.

DNA A-T Pair

3D cartoon and Gaussian surface models, PDB 4cmh, white background

A conceptual image of an abstract network of multi-coloured organic strands arranged in a non regular pattern all connected together in a complex manner. The network is made from smaller multi-coloured squares and polyhedra, in vivid colours against a pastel toned background. Shows background and foreground elements to the structure.

Free Images: "bestof:PDB 4prg EBI.jpg All alpha proteins Nuclear receptor ligand-binding domain Nuclear receptor ligand-binding domain Nuclear receptor ligand-binding domain"

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Hydrogen bomb.svg

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IFE and MFE parameter space.svg

Radiation symbol alternate.svg

Gamma Camera Parallel Hole Collimator-de.svg

Diagram human cell nucleus cs.svg

Pebble bed reactor scheme (English).svg

Pebble bed reactor scheme (Deutsch).svg

Isotopes and half-life eo.svg

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Japan Electricity Production.svg

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Japan Electricity Production 1980-2014.svg

Plant cell structure svg labels.svg

Notable mutations.svg

CD8 receptor.svg

Protein 7 domen.svg

Greek lc alpha.svg

Insulin glucose metabolism ZP.svg

Insulin glucose metabolism ZP-ca.svg

Alpha lowercase.svg

AlphaHelixSection (blue).svg

AminoAcidball rus.svg

Alpha Dive Flag.svg

2-hydroxy-2-methylbutyric acid.svg

Example image.svg

Adherens Junctions structural proteins gl.svg

Insulin glucose metabolism ZP (it).svg

Cellular tight junction-gl.svg

Schottky barrier forward bias.svg

Schottky barrier zero bias.svg

Schottky barrier reverse bias.svg

Straddling gap heterojunction band diagram.svg

Band filling diagram.svg

Semiconductor vacuum junction.svg

Schottky barrier minority carrier injection.svg

Metal semiconductor junction Schottky approximation.svg

Metal semiconductor junction Bardeen picture.svg

Photoelectric diode forward bias.svg

Thermionic diode reverse bias.svg

Thermionic diode forward bias.svg

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Work function mismatch gold aluminum.svg

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